ETHYL 3-(4-CHLOROPHENYL)-1-METHYL-1H-PYRAZOLE-5-CARBOXYLATE synthesis
- Product Name:ETHYL 3-(4-CHLOROPHENYL)-1-METHYL-1H-PYRAZOLE-5-CARBOXYLATE
- CAS Number:864426-87-9
- Molecular formula:C13H13ClN2O2
- Molecular Weight:264.71
595610-40-5
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77-78-1
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Yield:864426-87-9 71%
Reaction Conditions:
with sodium carbonate in dichloromethane at 40; for 24 h;Reflux;
Steps:
4.1.1. General procedure for the preparation of compounds 3a-c
General procedure: To a solution of compound 2 (77 mmol) in dichloromethane(100 mL) was added sodium carbonate (107 mmol), the resultingmixture was heated to 40 C. To the above solution was addeddimethyl sulfate (107 mmol). The mixture was refluxed for 24 h,and then the reaction mixture was poured in water and extractedwith dichloromethane. The combined extracts were dried overanhydrous sodium sulfate and filtered, the crude product wasconcentrated and was purified by silica gel column chromatography(hexane-EtOAc, 20:1 elution) to give compounds 3a-c.
References:
Dai, Hong;Ge, Shushan;Guo, Jing;Chen, Shi;Huang, Meiling;Yang, Jiaying;Sun, Siyu;Ling, Yong;Shi, Yujun [European Journal of Medicinal Chemistry,2018,vol. 143,p. 1066 - 1076]
5814-38-0
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60-34-4
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864426-88-0
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$281.00/1g
864426-87-9
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